1. It was a proof of concept done with limited experience and tools.2. Read the artist description to things and you might learn something.3. I can play several songs on it pretty decently. It's not meant to be playing crazy solos and stuff.

hmm, intriguing idea. maybe next time, make it look like a violin (it doesnt have frets) , and line it up so the strings are the notes, not the section of the violin. still, amazing concept, nice work.